[" 9.The width of an aperture is "4" mm and wavelength "],[" is "5000" A.Calculate the distance upto which ray "],[" optics is valid."]

The width of an aperture is 4 mm and wavelength of light illuminating it is 600 nm. Find the distance up to which ray optics is valid.

The distance upto which ray optics holds good is called

The distance upto which ray optics holds good is called

For an aperture of 2mm and wavelength of 500 nm , Fresnel distance is

What is the Fresnel distance for an aperture of 3 mm and wavelength 400 nm?

Light of wavelength 600 nm is incident on an aperture of size 2 mm.Calculate the distance upto which the ray of light can travel,such that its spread is less than the size of the aperture.

A slit of aperture 1.8 mm is illuminated by light of wavelength 5,000 Å . Calculate the minimum distance light can travel before the diffraction is noticed.

In Young's double slip experiment ,the width of fringes obtained from a source of light of wavelength 5000 Å is 3.6mm Calculate the frings width if the apparatus is immersed in a liquid of refractive index 1.2.